Meanwhile, Prince Charles and Camilla Duchess of Cornwall spent the weekend on a royal tour in Canada. But rather than piquing the public’s interest with their royal duties, it’s a clip of Charles and Camilla during a traditional Inuit throat performance that has everybody talking.

The performance, known as katajjaq, is a duet by two female singers who compete to see which singer can last the longest. Traditionally, they face each other and take turns to make noises using inhalation and exhalation techniques. If one performer runs out of breath, laughs or stops, they are out of the competition and someone else usually takes their place.

And when Charles and Camilla were sat watching the performance unfold, they got a serious case of the giggles. Turning to each other and attempting to cover their faces, they were unable to hide the fact that they were laughing.

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